Audaz Reef DivervsBreitling Superocean Heritage B20 Automatic

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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Reef Diver

Superocean Heritage B20 Automatic
Diameter
45mm
42mm
Lug-to-Lug
53mm
n/a
Thickness
15.5mm
14.3mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
70h
MSRP
$420
lowest
$5,800
Movement
Seiko NH35
Breitling B20
Case
6 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Audaz Reef Diver is a bold, rugged tool watch with a focus on clarity and accuracy for diving. It features a 45mm 316L stainless steel case, sapphire crystal, Super-LumiNova C3, and 300m water resistance. One owner notes it is a large, heavy watch. The Audaz Reef Diver is available with a Seiko NH35 automatic movement starting at $269. On balance, owners and reviewers view the Audaz Reef Diver positively for its dependable tool-watch design and robust specifications at its price point.
Owners and reviewers praise the Breitling Superocean Heritage B20 Automatic for its blend of style, comfort, legibility, and utility, with the 42mm size fitting well for many, though some find it large on smaller wrists. The blue sunburst dial is a popular choice, and the polished steel case and ceramic bezel are considered attractive and well-executed. Some owners appreciate the aesthetic appeal of the dial printing, date wheel, and hand alignment, with one owner reporting timegrapher numbers of +2s/d. However, the lume is noted as less prominent than on other sports watches. A few owners report minor cosmetic issues such as slight misalignment of the 12 o'clock marker, date window, bezel, or 6 o'clock index, and a noticeable gap between the bracelet and case. The bezel rotation is described by one owner as "crunchy" for the price point. The rubber strap's fixed angle is also a point of disappointment for some.
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